I'm sure Buffalobob will chime in here as I know he shoots one also.
I have a custom .240 with a 28" 9 tw barrel. I developed the load for it years ago, and my elderly father kills a few hundred ground hogs with it every year.
I have it shooting 105 Bergers with a stiff dose of RL22 and CCI BR2 primers. Velocity is 3380, which equates to a royal mess when copper meets mr. groundhog. I have taken ground hogs, fox, and coyote with it out to 1000 yards. I refuse to run the bore scope in it to see what the throat really looks like.
When she goes south, I have plenty of fresh barrels to screw on and bring her back to life...
I know BB shoots the 115 gr Bergers with an 8 tw 30" barrel, and has taken a few Antelope with his at extended range.
Your rifle has a factory barrel and tons of freebore, so your velocity will certainly be different than ours.